Circular 23 - Reference Index 
13 
Cockroaches (Cont'd) 
control (Cont'd) 
methods 11-8. 
oil -pyre thrum ex- 
tract spray 
•...11-10; 21-66. 
sprays 11-10. 
vaporizing machine 
11-10. 
development. . . .11-4. 
habits 11-3. 
how they are trouble- 
some 11-2. 
how they gain access 
to buildings . . 11-2 . 
prevention 
cleanliness. .11- 
inspect incomin 
supplies. . . .11-5. 
methods 11-5. 
tight screening 
11-7. 
reference 11-11. 
remedies 
borax powder 
11-9; 21-10. 
phosphorus pastes 
11-10; 21-63. 
pyre thrum powder 
11-9; 21-66. 
. sodium fluoride 
nowder 
'.....11-8; 21-71. 
troublesome species 
,...11-3. 
Coconut oil soap 
(liquid) 
characteristics; gen- 
eral uses; manufact- 
urers and distributors 
21-21. 
emulsifier. . . .21-20. 
Cold storage 
control 
fabric pests . . . 3-9 . 
food pests 4-5. 
not effective against 
mites 5-8. 
preventive against 
animal product in- 
sects 5-8. 
Cold weather 
, control for fabric 
pests 3-9. 
Collodion (or new skin) 
alleviation of chigger 
bites... 14-8; 21-21. 
availability; char- 
acteristics; price 
21-21. 
Common carpet beetle 
( Anthrenus scrophu - 
lariae ) 
adult. . . (illus. ) 3-5. 
description 3-3. 
larvae . . ( illus . ) 3-6 . 
Common horse bot fly 
( Castrophilus intes - 
tinal is De Seer) 
adult. 16-2. 
control .16-9. 
distribution in U. S. 
16-6. 
egg-laying habits 
16-3. 
eggs 16-3, (illus. ) 4. 
how injury is pro- 
duced 16-6. 
larvae 
..16-4, (illus.) 5, 6. 
life history and sea- 
sonal activity 16-7. 
